The IBM 01DH542 6Gb 4-Port PCIe RAID Adapter (CCIN 57B4) is an enterprise SAS RAID controller designed for IBM Power Systems and data center storage environments. It provides external storage connectivity and hardware RAID functionality for attaching disk enclosures, JBOD shelves, and enterprise storage arrays.

This adapter is part of IBM’s PCIe Gen3 SAS RAID family and is commonly used in Power8 and similar enterprise server platforms. It supports high-speed 6Gb/s SAS links and is designed for reliable 24/7 operation in mission-critical workloads such as virtualization, databases, and enterprise storage systems.

It features four external Mini-SAS HD ports, allowing multiple storage expansion connections with RAID protection and high availability configurations.

Specifications:

• Part Number: 01DH542
• CCIN: 57B4
• Type: SAS RAID Controller / Storage Adapter
• Interface: PCIe 3.0 x8
• Ports: 4 × External Mini-SAS HD connectors
• Speed: 6Gb/s per SAS lane
• RAID Support: RAID 0, 5, 6, 10 (system dependent)
• Function: External storage connectivity + hardware RAID management
• Application: IBM Power Systems, enterprise storage arrays, data centers
• Form Factor: Low-profile server adapter card

Features:

• Four-port external SAS connectivity for enterprise storage expansion
• Hardware RAID support for performance and data protection
• Designed for IBM Power Systems enterprise infrastructure
• Built for continuous 24/7 mission-critical operation
• Supports scalable SAN and storage array environments
• High-speed PCIe Gen3 interface for stable throughput
• Reliable enterprise-grade storage controller design
• Ideal for data center and virtualization workloads